# Plus Minus Math SD vs Classroom Math Facts Drills

The clearest difference is in-app purchases: Plus Minus Math SD at none against Classroom Math Facts Drills's 4. Plus Minus Math SD also leads on iOS requirement (12.0 vs 17.6). Classroom Math Facts Drills's advantage is ads (none vs shown) and update cadence (every 5 months vs every 18 months). On price and device support there is nothing between them.

Both are free to download. Classroom Math Facts Drills sells 4 one-off in-app purchases. Plus Minus Math SD asks for nothing beyond the download.

Plus Minus Math SD ships an update every 18 months, Classroom Math Facts Drills every 5 months. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Plus Minus Math SD | Classroom Math Facts Drills |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 5 months** |
| Size | 24 MB | 20 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andela ICT](https://appshunter.io/developer/342734534) | [Jiri Bohm](https://appshunter.io/developer/640272614) |

## What reviewers say

### Plus Minus Math SD

[App page](https://appshunter.io/ios/app/plus-minus-math-sd/id1031009964)

**Features:** macOS Compatibility

**In-app purchases:** none


### Classroom Math Facts Drills

[App page](https://appshunter.io/ios/app/classroom-math-facts-drills/id1496495985)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Addition | $2.99 | one-time |
| Multiplication | $2.99 | one-time |
| Division | $2.99 | one-time |
| Full Access | $5.99 | one-time |


## Frequently asked questions

### Is Plus Minus Math SD free?

Plus Minus Math SD is free to download, with no in-app purchases.

### Is Classroom Math Facts Drills free?

Classroom Math Facts Drills is free to download, with in-app purchases available.

### Do Plus Minus Math SD or Classroom Math Facts Drills have ads?

Plus Minus Math SD shows ads; Classroom Math Facts Drills does not.

### Which is updated more often, Plus Minus Math SD or Classroom Math Facts Drills?

Plus Minus Math SD ships an update every 18 months, and Classroom Math Facts Drills every 5 months. Most recently, Plus Minus Math SD was updated on October 12, 2026 and Classroom Math Facts Drills on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*